A family of Microsoft relational database management systems designed for ease of use.
Users should never see, much less care about how a table's datasheet looks. Users, including yourself, should ALWAYS use a form to view/edit data (or a report if you need to print or present a more complex layout than can easily be done in a form. In other words, tables and queries are NOT a user interface mechanism and consequently what few formatting features do have are still too many.
If you create a simple continuous or datasheet form based on the table, then you can do what you want using the techniques I posted before.